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Superhuman

by Superhuman (formerly Grammarly)

Fast AI email client with an assistant and a partner-agent store

Product with AI agentsCopilot

Last reviewed 2026-06-18

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Superhuman is a fast, keyboard-driven email client with AI built in: it drafts and improves replies in the user's voice, summarizes threads, triages the inbox, and helps schedule by suggesting open times. After Grammarly acquired Superhuman in 2025, the company rebranded itself as Superhuman and now offers the Superhuman Suite alongside Superhuman Go, an AI assistant that brings proactive suggestions wherever you work and orchestrates first- and third-party agents (Gmail, Google Calendar, Jira, and partner agents from Box, Gamma, and others) via an Agent Store. In the email client, Superhuman is a copilot: it drafts, summarizes, and suggests, and a human sends. Superhuman Go adds a proactive, agent-orchestrating layer, but its suggestions and agent actions remain human-confirmed in practice.

What it can do

  • Draft and improve email replies in your voice

    Copilot

    Generates and refines replies that match the user's tone; the human reviews and sends.

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  • Summarize threads and triage the inbox

    Copilot

    Summarizes long threads and helps prioritize and process the inbox faster.

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  • Suggest meeting times from availability

    Copilot

    Analyzes availability and recommends open dates when scheduling appointments or meetings.

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  • Orchestrate first- and third-party agents (Superhuman Go)

    Supervised

    Surfaces proactive suggestions and coordinates agents (Gmail, Google Calendar, Jira, plus partner agents from Box, Gamma, and others) from an Agent Store; actions are human-confirmed.

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Strengths

  • +Fast, keyboard-driven email with AI drafting, summarization, and triage that genuinely speeds up inbox work
  • +Superhuman Go adds a proactive assistant and an Agent Store of first- and third-party agents
  • +Backed by Superhuman (formerly Grammarly), unifying Grammarly, Coda, and Superhuman Mail

Limitations

  • −Premium pricing for an email client, and Superhuman Mail sits in the higher Business tier
  • −Pricing and packaging shifted after the rebrand, which can be confusing
  • −A copilot: it drafts and suggests, and agent actions are human-confirmed rather than autonomous

Overview

Superhuman is a fast AI email client. After Grammarly acquired it in 2025, the parent company rebranded as Superhuman and now ships the Superhuman Suite plus Superhuman Go.

What it does

In the inbox it drafts and improves replies in your voice, summarizes threads, triages, and suggests meeting times from availability. Superhuman Go adds proactive suggestions wherever you work and orchestrates first- and third-party agents (Gmail, Google Calendar, Jira, plus partners like Box and Gamma) from an Agent Store, with actions human-confirmed.

Pricing

Subscription: a Pro plan around $12/user/mo (annual) and Superhuman Mail in a Business tier around $33/user/mo (annual). Packaging shifted after the rebrand.

Best for / not for

Best for high-volume email users and teams who want speed plus AI in the inbox and a growing agent ecosystem. Less suited to anyone unwilling to pay a premium for an email client.

Alternatives

Fyxer is a cheaper AI email assistant layered on Gmail/Outlook; Microsoft Copilot bundles email AI into the Microsoft stack.

What people are saying

We aggregate real LinkedIn discussion into sentiment for the agents people search most. Superhuman isn't tracked yet, want it added? Request tracking.

FAQ

Did Grammarly buy Superhuman?+

Yes. Grammarly acquired the Superhuman email client in 2025 and later rebranded the parent company as Superhuman, uniting Grammarly, Coda, and Superhuman Mail under one brand.

Is Superhuman an autonomous agent?+

The email client is a copilot: it drafts, summarizes, and suggests, and a human sends. Superhuman Go adds a proactive layer that orchestrates agents, but those actions are human-confirmed in practice.

Sources

Last reviewed 2026-06-18

Alternatives & related

Fyxer AI
AI email assistant that sorts your inbox and drafts replies in your voice
Microsoft Copilot
Microsoft's AI: an in-app copilot plus a Copilot Studio agent platform
Notion AI
AI in the Notion workspace for writing, search, meeting notes, and team agents